Description

5-Ethyl-2-Pyrrolidinone is a high-purity, versatile cyclic amide (lactam) solvent and chemical intermediate. This compound is valued for its excellent solvating power, high boiling point, and stability, making it a superior alternative to common polar aprotic solvents. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking efficient reaction media and building blocks for advanced synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those containing pyrrolidine or piperidine motifs.
• High-Performance Solvent: Used as a polar aprotic solvent in organic synthesis, including polymerization reactions, peptide coupling, and as a reaction medium for Grignard and lithiation reactions.
• Agrochemical Synthesis: Serves as a precursor and solvent in the manufacturing of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Resin Production: Employed in the production of specialty polymers, nylons, and polyamide resins, where it acts as a monomer or processing aid.
• Electrolyte Additive: Utilized in the formulation of advanced electrolytes for lithium-ion batteries to enhance conductivity and stability.
• Chemical Research & Development: A valuable reagent in R&D laboratories for developing new synthetic methodologies and exploring novel chemical entities.

Basic Information

Product Name	5-Ethyl-2-Pyrrolidinone
CAS No.	10312-40-0
Molecular Formula	C6H11NO
Molecular Weight	113.16 g/mol
Synonyms	5-Ethylpyrrolidin-2-one; 2-Pyrrolidinone, 5-ethyl-; N-Ethyl-2-pyrrolidinone (common misnomer); 5-Ethyl-2-pyrrolidone; γ-Ethylbutyrolactam; 1-Ethyl-2-pyrrolidinone (registry synonym); 5-Ethyl-dihydro-2(3H)-furanone, imine; EINECS 233-682-2
EINECS	233-682-2

Quality Control

Our 5-Ethyl-2-Pyrrolidinone is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatography (HPLC, GC) and spectroscopy (IR, NMR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The product is hygroscopic; keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Gravity (20°C)	0.990 - 1.010
Refractive Index (20°C)	1.465 - 1.475

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.